Older dads have lower scoring kids, research suggests

OK, it is a slight exaggeration. Here is what the Australian researchers found:

Children of older fathers appear to perform less well in intelligence tests during infancy and childhood, a study by researchers in Australia shows. – Reuters on MSNBC.com, 3/9/09

Older moms, meanwhile, may help:

In contrast, the study found that children with older mothers tended to gain higher scores in the same tests designed to measure the ability to think and reason, including concentration, learning, memory, speaking and reading skills.